<template>
  <v-chart class="chart" :option="option" />
</template>

<script>
import { use } from "echarts/core";
import { CanvasRenderer } from "echarts/renderers";
import { PieChart } from "echarts/charts";
import {
  LegendComponent,
  TitleComponent,
  TooltipComponent,
} from "echarts/components";
import VChart, { THEME_KEY } from "vue-echarts";

use([
  CanvasRenderer,
  PieChart,
  TitleComponent,
  TooltipComponent,
  LegendComponent,
]);

export default {
  name: "ECharts",
  components: {
    VChart,
  },
  provide: {
    [THEME_KEY]: "dark",
  },
  data() {
    return {
      option: {
        // title: {
        //   text: "Traffic Sources",
        //   left: "center",
        // },
        tooltip: {
          trigger: "item",
          formatter: "{a} <br/>{b} : {c} ({d}%)",
        },
        // legend: {
        //   orient: "vertical",
        //   left: "left",
        //   data: [
        //     "Direct",
        //     "Email",
        //     "Ad Networks",
        //     "Video Ads",
        //     "Search Engines",
        //   ],
        // },
        series: [
          {
            name: "Traffic Sources",
            type: "pie",
            radius: "55%",
            center: ["50%", "60%"],
            data: [
              { value: 335, name: "Direct" },
              { value: 310, name: "Email" },
              { value: 234, name: "Ad Networks" },
              { value: 135, name: "Video Ads" },
              { value: 1548, name: "Search Engines" },
            ],
            emphasis: {
              itemStyle: {
                shadowBlur: 10,
                shadowOffsetX: 0,
                shadowColor: "rgba(0, 0, 0, 0.5)",
              },
            },
          },
        ],
      },
    };
  },
};
</script>

<style scoped>
.chart {
  height: 400px;
}
</style>
